Community dancing: Redwood City’s Dancing on the Square series presents an evening of community dancing. Today’s featured dance form is samba. [6 to 8 p.m., Courthouse Square, 2200 Broadway, Redwood City]

Italian history: The Italian Cultural Institute presents “The Making of Modern Italy and its meaning for the Italians in California,” an exhibit of photographs and artifacts. [10 a.m. to 5 p.m., 814 Montgomery St., S.F.]Blues show: Electric-blues artist Nick Moss performs with the Flip Tops. [8 and 10 p.m., Biscuits and Blues, 401 Mason St., S.F.]

Dining out

Mission Beach Cafe: It’s “BBQ Tuesday” at the restaurant. Entrees include pork ribs, a pork-shoulder sandwich, brisket and half a chicken. Diners can accompany those selections with a side dish such as greens or potato salad. [198 Guerrero St., S.F., (415) 861-0198]